Influence of magnetic fields on the mechanical loss of Terfenol-D/PbZr 0.52Ti0.48O3/Terfenol-D laminated composites

Yiping Yao, Ying Hou, Sining Dong, Xiaohua Huang, Qingxuan Yu, Xiaoguang Li

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

The influence of magnetic fields on the mechanical loss (Q-1) of Terfenol-D/PbZr0.52Ti0.48O3/Terfenol-D three-layer laminated composites is investigated systemically using the technique for measuring the resonance magnetoelectric (ME) effect. The results indicate that Q-1 varies non-monotonically with dc magnetic fields and shows a maximum near 500 Oe for all the samples with different layer thickness ratios (n) of Terfenol-D (Tb0.3Dy0.7Fe 1.92). Considering various kinds of mechanical energy dissipation, it is found that Q-1 is mainly dominated by the mechanical damping due to the domain wall motion in Terfenol-D under the actions of dc and ac magnetic fields as well as the stress at the interface. In addition, the effect of eddy current losses on the energy dissipation of the system is also discussed.

Original languageEnglish (US)
Pages (from-to)6920-6923
Number of pages4
JournalJournal of Alloys and Compounds
Volume509
Issue number24
DOIs
StatePublished - Jun 16 2011

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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